package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.SetmealVO;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
@Transactional
@Slf4j
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;


    @ApiOperation("新增套餐")
    @Override
    public void save(SetmealDTO setmealdto) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealdto, setmeal);
        setmealMapper.insert(setmeal);

        Long setmealId = setmeal.getId();
        List<SetmealDish> setmealDishes = setmealdto.getSetmealDishes();
        for (SetmealDish setmealDish : setmealDishes) {
            setmealDish.setSetmealId(setmealId);
        }
        setmealDishMapper.insertSetmealDish(setmealDishes);
    }

    @ApiOperation("分页查询")
    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page = setmealMapper.pageQuery(setmealPageQueryDTO);
        return new PageResult(page.getTotal(),page.getResult());
    }

    @ApiOperation("批量删除")
    @Override
    public void delete(List<Long> ids) {
        for (Long id : ids) {
            Setmeal setmeal = setmealMapper.getById(id);
            if (setmeal.getStatus() == StatusConstant.ENABLE) {
                throw new RuntimeException(MessageConstant.DISH_ON_SALE);
            }
        }

        for (Long id : ids) {
            setmealMapper.deleteById(id);
            setmealDishMapper.deleteBySetmealId(id);
        }
    }

    @ApiOperation("根据id查询套餐详情")
    @Override
    public SetmealVO getById(Long id) {
        Setmeal setmeal = setmealMapper.getById(id);
        SetmealVO setmealVO = new SetmealVO();
        BeanUtils.copyProperties(setmeal,setmealVO);
        List<SetmealDish> setmealDishes = setmealDishMapper.getBySetmealId(id);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @ApiOperation("修改套餐")
    @Override
    public void update(SetmealDTO setmealdto) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealdto,setmeal);
        setmealMapper.update(setmeal);

        Long setmealId = setmealdto.getId();
        setmealDishMapper.deleteBySetmealId(setmealId);

        List<SetmealDish> setmealDishes = setmealdto.getSetmealDishes();
        for (SetmealDish setmealDish : setmealDishes) {
            setmealDish.setSetmealId(setmealId);
        }
        setmealDishMapper.insertSetmealDish(setmealDishes);
    }

    @ApiOperation("套餐起售、停售")
    @Override
    public void startOrStop(Integer status, Long id) {
        if (status == StatusConstant.ENABLE) {
            List<Dish> dishList = dishMapper.getBySetmealId(id);
            if (dishList!= null && dishList.size() > 0) {
                for (Dish dish : dishList) {
                    if (dish.getStatus() == StatusConstant.DISABLE) {
                        throw new RuntimeException(MessageConstant.SETMEAL_ENABLE_FAILED);
                    }
                }
            }
        }

        Setmeal setmeal = Setmeal.builder()
               .id(id)
               .status(status)
               .build();
        setmealMapper.update(setmeal);
    }
}
